A lightweight open framework for building fast and efficient cloud-native Java microservices.
Build cloud-native apps and microservices while running only what you need. Open LibertyTM is the most flexible server runtime available to JavaTM developers in this solar system.
Develop cloud-native Java microservices
Open Liberty starts up fast, with a low memory footprint and live reload for quick iteration. Adding and removing features from the latest versions of MicroProfile and Jakarta EE. And with zero migration, you focus on what's important, not the APIs changing under you.
Dev mode for fast iteration
Launch into dev mode and get coding. No more manual compiling, packaging, and deploying—we handle that for you. Get automated testing, debugger support, and a fast turn-around time in any editor.
Deploy in containers to any cloud
Containerized and deployable with fast throughput on any Kubernetes cloud. Battle-hardened and proven in production, with zero migration. Easy-to-manage configuration from development to test to production.
Monitor microservices in the cloud
Trace your live microservices. Gather metrics and configure alerts, and browse metrics in dashboards. Consolidate and analyze logs from across your hybrid cloud.
Open Liberty integrates with the Open Source community
Jenkins
Spring
Docker
Grafana
Gradle
Logstash
Prometheus
Maven
Kubernetes
Kibana
Elastic Search
Open Liberty News
Check out the latest news on our blog.
Building Better APIs: Documenting APIs in Open Liberty using MicroProfile OpenAPI
This blog explores the OpenAPI Specification and its integration with Open Liberty using MicroProfile OpenAPI. It covers the importance of API documentation, the role of OpenAPI and Swagger, and a step-by-step guide to using MicroProfile OpenAPI in an Open Liberty project. Readers will learn about various MicroProfile OpenAPI annotations with practical examples and see how they are rendered in Swagger UI.
View all blog postsBackporting compatibility of Microprofile Health-4.0 and introducing file-based health checks in 25.0.0.6-beta
This beta release brings updates to backporting compatibility of mpHealth-4.0 and file-based health checks that were earlier released in 25.0.0.4-beta.
View all release blog postsA crew that supports you
As a member of the Open Liberty crew, you have the support and expertise of an entire community at your fingertips. Don't forget to lean on them when you have questions!
And for times that you need an extra boost, check out Open Liberty Enterprise Support from IBM.
Get involved
Open Liberty thrives on users’ collaboration, contributions and creativity. We invite you to share your skills and ideas with users in this galaxy and beyond.
Here are some of our awesome contributors!
